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28445124401 is a prime number
BaseRepresentation
bin11010011111011101…
…100010011100110001
32201102101112001000222
4122133131202130301
5431223422440101
621022325422425
72024616365561
oct323735423461
981371461028
1028445124401
1111077592a81
12561a26aa15
1328b41cb475
14153bb3cda1
15b1739001b
hex69f762731

28445124401 has 2 divisors, whose sum is σ = 28445124402. Its totient is φ = 28445124400.

The previous prime is 28445124307. The next prime is 28445124413. The reversal of 28445124401 is 10442154482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28089424801 + 355699600 = 167599^2 + 18860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28445124401 is a prime.

It is not a weakly prime, because it can be changed into another prime (28445124451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14222562200 + 14222562201.

It is an arithmetic number, because the mean of its divisors is an integer number (14222562201).

Almost surely, 228445124401 is an apocalyptic number.

It is an amenable number.

28445124401 is a deficient number, since it is larger than the sum of its proper divisors (1).

28445124401 is an equidigital number, since it uses as much as digits as its factorization.

28445124401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40960, while the sum is 35.

Adding to 28445124401 its reverse (10442154482), we get a palindrome (38887278883).

The spelling of 28445124401 in words is "twenty-eight billion, four hundred forty-five million, one hundred twenty-four thousand, four hundred one".